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nexus-utilities/patmail.sh
2021-11-02 13:03:03 -07:00

372 lines
12 KiB
Bash
Executable File

#!/usr/bin/env bash
#================================================================
# HEADER
#================================================================
#% SYNOPSIS
#+ ${SCRIPT_NAME} [-hv]
#+ ${SCRIPT_NAME} TO SUBECT TRANSPORT
#+ ${SCRIPT_NAME} [-d DIRECTORY] [-m DIRECTORY] [-l FILE]
#+ [-f FILE] TO SUBECT TRANSPORT
#%
#% DESCRIPTION
#% This script allows sending Winlink messages via the command line or script.
#% It requires pat (a Winlink client) and the dos2unix program.
#% The body of the message is supplied to the script from STDIN. See EXAMPLES below.
#%
#% OPTIONS
#% -h, --help Print this help
#% -v, --version Print script information
#% -d, --dir=DIRECTORY Path to directory containing config.json file
#% and mailbox directory. Default: $HOME/.config/pat
#% If default location, will use mailbox in
#% $HOME/.local/pat/mailbox.
#% -m, --mailbox=DIRECTORY Override mailbox location.
#% Default: $HOME/.local/share/pat/mailbox
#% -l FILE, --log=FILE Send pat event log output to FILE. FILE will be
#% overwritten if it exists. To send output to stdout,
#% use /dev/stdout. Default: /dev/null
#% -o FILE, --olog=File Override pat log file.
#% Default: $HOME/.local/state/pat/pat.log
#% -f FILE, --file=FILE Attach file to message where file is full path to
#% file. To attach multiple files, use multiple -f FILE
#% arguments, one per attached file.
#%
#% COMMANDS (All 3 COMMANDS are required)
#% TO One or more recipient email addresses
#% (comma separated). Winlink email addresses
#% (CALL@winlink.org) do not need to include
#% '@winlink.org', just the call sign.
#%
#% SUBJECT Email subject enclosed in "double quotes".
#%
#% TRANSPORT pat transport method or alias. For example:
#% outbox
#% Don't immediately send the message. Just put
#% it in the outbox.
#% telnet
#% ax25://portname/call-ssid
#% where portname is as defined in /etc/ax25/axports
#% and the same as the ax25 port configured in
#% config.json. This is usually 'wl2k'.
#%
#% where call-ssid is the RMS gateway. Example:
#% ax25://wl2k/W7ECG-10
#% Run 'pat connect help' to see more transport
#% types.
#%
#% EXAMPLES
#% Send two lines of text to callsign N0ONE@winlink.org via telnet:
#%
#% echo -e "1st line\n2nd line" | ${SCRIPT_NAME} N0ONE "My Subject" telnet
#%
#% Send the contents of file 'myfile.txt' to me@example.com and W7ABC@winlink.org
#% via telnet:
#%
#% cat myfile.txt | ${SCRIPT_NAME} me@example.com,W7ABC "My Important Message" telnet
#%
#% Send the contents of file 'myfile.txt' to W7ABC@winlink.org via telnet and log
#% output to stdout:
#%
#% cat myfile.txt | ${SCRIPT_NAME} -l /dev/stdout me@example.com,W7ABC "My Important Message" telnet
#%
#% Send the contents of 'myfile.txt' to me@example.com and W7ABC@winlink.org using
#% packet radio via RMS gateway ax25://wl2k/W7ECG-10
#%
#% ${SCRIPT_NAME} me@example.com,W7ABC "My Important Message" ax25://wl2k/W7ECG-10 < myfile.txt
#%
#% Same as previous example, but just put message in the outgoing mailbox:
#%
#% ${SCRIPT_NAME} me@example.com,W7ABC "My Important Message" outbox < myfile.txt
#%
#================================================================
#- IMPLEMENTATION
#- version ${SCRIPT_NAME} 2.5.3
#- author Steve Magnuson, AG7GN
#- license CC-BY-SA Creative Commons License
#- script_id 0
#-
#================================================================
# HISTORY
# 20190920 : Steve Magnuson : Script creation
# 20200204 : Steve Magnuson : Added script template
# 20200227 : Steve Magnuson : Added option to send pat log text to a file or stdout
# 20200730 : Steve Magnuson : Added ability to specify pat config & mailbox folder
# 20211102 : Steve Magnuson : Updated default pat config folder for pat 0.12
#
#================================================================
# DEBUG OPTION
# set -n # Uncomment to check your syntax, without execution.
# set -x # Uncomment to debug this shell script
#
#================================================================
# END_OF_HEADER
#================================================================
SYNTAX=false
DEBUG=false
Optnum=$#
#============================
# FUNCTIONS
#============================
function TrapCleanup() {
[[ -d "${TMPDIR}" ]] && rm -rf "${TMPDIR}/"
exit 0
}
function SafeExit() {
# Delete temp files, if any
[[ -d "${TMPDIR}" ]] && rm -rf "${TMPDIR}/"
trap - INT TERM EXIT
exit
}
function ScriptInfo() {
HEAD_FILTER="^#-"
[[ "$1" = "usage" ]] && HEAD_FILTER="^#+"
[[ "$1" = "full" ]] && HEAD_FILTER="^#[%+]"
[[ "$1" = "version" ]] && HEAD_FILTER="^#-"
head -${SCRIPT_HEADSIZE:-99} ${0} | grep -e "${HEAD_FILTER}" | \
sed -e "s/${HEAD_FILTER}//g" \
-e "s/\${SCRIPT_NAME}/${SCRIPT_NAME}/g" \
-e "s/\${SPEED}/${SPEED}/g" \
-e "s/\${DEFAULT_PORTSTRING}/${DEFAULT_PORTSTRING}/g"
}
function Usage() {
printf "Usage: "
ScriptInfo usage
exit
}
function Die () {
echo "${*}"
SafeExit
}
#============================
# FILES AND VARIABLES
#============================
# Set Temp Directory
# -----------------------------------
# Create temp directory with three random numbers and the process ID
# in the name. This directory is removed automatically at exit.
# -----------------------------------
TMPDIR="/tmp/${SCRIPT_NAME}.$RANDOM.$RANDOM.$RANDOM.$$"
(umask 077 && mkdir "${TMPDIR}") || {
Die "Could not create temporary directory! Exiting."
}
#== general variables ==#
SCRIPT_NAME="$(basename ${0})" # scriptname without path
SCRIPT_DIR="$( cd $(dirname "$0") && pwd )" # script directory
SCRIPT_FULLPATH="${SCRIPT_DIR}/${SCRIPT_NAME}"
SCRIPT_ID="$(ScriptInfo | grep script_id | tr -s ' ' | cut -d' ' -f3)"
SCRIPT_HEADSIZE=$(grep -sn "^# END_OF_HEADER" ${0} | head -1 | cut -f1 -d:)
VERSION="$(ScriptInfo version | grep version | tr -s ' ' | cut -d' ' -f 4)"
#============================
# PARSE OPTIONS WITH GETOPTS
#============================
#== set short options ==#
SCRIPT_OPTS=':d:f:l:m:o:hv-:'
#== set long options associated with short one ==#
typeset -A ARRAY_OPTS
ARRAY_OPTS=(
[help]=h
[version]=v
[dir]=d
[file]=f
[log]=l
[olog]=o
[mailbox]=m
)
declare -a ATTACHMENTS=()
LONG_OPTS="^($(echo "${!ARRAY_OPTS[@]}" | tr ' ' '|'))="
# Parse options
while getopts ${SCRIPT_OPTS} OPTION
do
# Translate long options to short
if [[ "x$OPTION" == "x-" ]]
then
LONG_OPTION=$OPTARG
LONG_OPTARG=$(echo $LONG_OPTION | egrep "$LONG_OPTS" | cut -d'=' -f2-)
LONG_OPTIND=-1
[[ "x$LONG_OPTARG" = "x" ]] && LONG_OPTIND=$OPTIND || LONG_OPTION=$(echo $OPTARG | cut -d'=' -f1)
[[ $LONG_OPTIND -ne -1 ]] && eval LONG_OPTARG="\$$LONG_OPTIND"
OPTION=${ARRAY_OPTS[$LONG_OPTION]}
[[ "x$OPTION" = "x" ]] && OPTION="?" OPTARG="-$LONG_OPTION"
if [[ $( echo "${SCRIPT_OPTS}" | grep -c "${OPTION}:" ) -eq 1 ]]; then
if [[ "x${LONG_OPTARG}" = "x" ]] || [[ "${LONG_OPTARG}" = -* ]]; then
OPTION=":" OPTARG="-$LONG_OPTION"
else
OPTARG="$LONG_OPTARG";
if [[ $LONG_OPTIND -ne -1 ]]; then
[[ $OPTIND -le $Optnum ]] && OPTIND=$(( $OPTIND+1 ))
shift $OPTIND
OPTIND=1
fi
fi
fi
fi
# Options followed by another option instead of argument
if [[ "x${OPTION}" != "x:" ]] && [[ "x${OPTION}" != "x?" ]] && [[ "${OPTARG}" = -* ]]
then
OPTARG="$OPTION" OPTION=":"
fi
# Finally, manage options
case "$OPTION" in
h)
ScriptInfo full
exit 0
;;
v)
ScriptInfo version
exit 0
;;
d)
PAT_DIR="$OPTARG"
;;
f)
ATTACHMENTS+=("$OPTARG")
;;
l)
EVENT_LOG="$OPTARG"
;;
m)
MBOX="$OPTARG"
;;
m)
LOG_FILE="$OPTARG"
;;
:)
Die "${SCRIPT_NAME}: -$OPTARG: option requires an argument"
;;
?)
Die "${SCRIPT_NAME}: -$OPTARG: unknown option"
;;
esac
done
shift $((${OPTIND} - 1)) ## shift options
#============================
# MAIN SCRIPT
#============================
# Trap bad exits with cleanup function
trap SafeExit EXIT INT TERM
# Exit on error. Append '||true' when you run the script if you expect an error.
#set -o errexit
# Check Syntax if set
$SYNTAX && set -n
# Run in debug mode, if set
$DEBUG && set -x
(( $# != 3 )) && Die "3 parameters, TO, SUBJECT and TRANSPORT are required."
PAT="$(command -v pat)"
[[ $? == 0 ]] || Die "pat winlink client is not installed."
UNIX2DOS="$(command -v unix2dos)"
[[ $? == 0 ]] || Die "dos2unix tools are not installed."
if [[ -z $PAT_DIR ]]
then
if [[ -d $HOME/.config/pat ]]
then
PAT_DIR="$HOME/.config/pat"
[[ -d $MBOX ]] || MBOX="$HOME/.local/share/pat/mailbox"
LOG_FILE="$HOME/.local/state/pat/pat.log"
elif [[ -d $HOME/.wl2k ]]
then
PAT_DIR="$HOME/.wl2k"
[[ -d $MBOX ]] || MBOX="$PAT_DIR/mailbox"
LOG_FILE="$PAT_DIR/pat.log"
else
Die "Could not find a pat configuration. Run 'pat configure' to set up."
fi
fi
[[ -d "$PAT_DIR" ]] || Die "Directory $PAT_DIR does not exist or is not a directory."
PAT_CONFIG="$PAT_DIR/config.json"
[[ -d "$MBOX" ]] || Die "Mailbox directory $MBOX does not exist or is not a directory."
EVENT_LOG="${EVENT_LOG:-/dev/null}"
[[ -w "$EVENT_LOG" ]] || EVENT_LOG="/dev/null"
[[ -f "$LOG_FILE" ]] || touch "$LOG_FILE" || Die "Cannot write to log file $LOG_FILE"
CALL="$(cat $PAT_CONFIG | grep "\"mycall\":" | tr -d ' ",' | cut -d: -f2)"
[[ $CALL == "" ]] && Die "Could not obtain call sign from $PAT_CONFIG. Is pat configured?"
OUTDIR="$MBOX/$CALL/out"
TO="$1"
SUBJECT="$2"
DELIVERY="$3"
[[ $TO =~ "," ]] || TO="$TO\n" # There's only one recipient, so append \n
echo > "$EVENT_LOG"
# Compose an empty email message
export EDITOR=ed
TFILE="${TMPDIR}/message"
HEADER="$CALL\n$TO\n\n$SUBJECT"
echo -e "$HEADER" | $PAT --config "$PAT_CONFIG" --log "$LOG_FILE" --event-log "$EVENT_LOG" --mbox $MBOX compose 2>/dev/null 1> $TFILE
MSG="$(grep "MID:" $TFILE | tr -d ' \t' | cut -d':' -f3)"
[[ $MSG == "" ]] && Die "Could not find the MID (Message ID)"
MSG="$OUTDIR/$MSG.b2f"
sed -i -e 's/<No message body>//' $MSG
if (( ${#ATTACHMENTS[@]} ))
then # Add attached file(s) size and name to header
for F in "${ATTACHMENTS[@]}"
do
if [ -s "$F" ]
then
SIZE=$(stat -L --printf="%s" "$F")
HEADER="File: $SIZE ${F##*/}"
sed -i "/^From: .*/i $HEADER" "$MSG"
else
rm "$MSG"
Die "Attachment \"$F\" empty or not found. Message not posted/sent."
fi
done
fi
# Add carriage returns to empty message (Winlink requires this)
$UNIX2DOS -q $MSG
# Read message text from stdin
cat - > $TFILE
echo >> $TFILE
# Add carriage returns to user message (Winlink requires this)
$UNIX2DOS -q $TFILE
# Append message body to message and add character count to message (required by Winlink)
COUNT="$(wc -c $TFILE | cut -d' ' -f1)"
cat $TFILE >> $MSG
sed -i -e "s/^Body: .*/Body: $COUNT/" $MSG
if (( ${#ATTACHMENTS[@]} ))
then # Append file(s) to message
for F in "${ATTACHMENTS[@]}"
do
cat "$F" >> "$MSG"
echo -e -n "\r\n" >> "$MSG"
done
fi
if [[ ${DELIVERY,,} != "outbox" ]]
then # Send the message
$PAT --config $PAT_CONFIG --mbox $MBOX --send-only --log "$LOG_FILE" --event-log "$EVENT_LOG" connect $DELIVERY >> $EVENT_LOG
exit $?
fi
exit